Apparatus for indicating failure of an air filtration system in a diesel engine
AssigneeNorman Leon Helman
InventorNorman Leon Helman
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Abstract
An apparatus is disclosed for continuously sampling, at a point downstream of the air cleaner, the normally clean air entering an air induction system of a diesel engine to produce a signal indicating a leakage malfunction condition in the air induction system by measuring dust/particulate matter. The disclosed apparatus includes an arrangement in the form of a sample collector assembly for obtaining a representative sample of leakage particulates within the diesel engine intake system, a measurement assembly for the quantification of the dust/particulates by optical methods, a signal conditioning assembly (200), a processor (300), and a remote annunciation assembly (400).
Claims7
A dust/particulate detector monitoring the failure of the air filtration unit and air intake ducting of a diesel engine by generating a signal indicative of the concentration of dust/particulates entrained in the air flow of the diesel engine downstream of the filtration devices and intake system ducting resulting from failures of the devices comprising:
- Means for providing the detector in communication with the airflow of the diesel engine;
- Means for depositing said dust/particulates on an optical sensor contained within the detector;
- Means for detecting changes in opacity of said dust/particulates deposited on the sensor, causing optically detectable changes in transmitted optical signals in the dust/particulate sensor;
- Means for calibrating the detector to produce a number of reference levels for comparison and indication.
Dependencies are inferred from the claim text.